rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8692/1:b..l P11421/1:b..l
rcu: (detected by 1, t=10506 jiffies, g=40421, q=275 ncpus=2)
task:syz.5.1128 state:R running task stack:25872 pid:11421 tgid:11420 ppid:9224 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6690
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6869
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6893
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
_raw_spin_unlock_irq+0x44/0x50 kernel/locking/spinlock.c:202
spin_unlock_irq include/linux/spinlock.h:401 [inline]
loop_queue_work drivers/block/loop.c:903 [inline]
loop_queue_rq+0xa01/0xaf0 drivers/block/loop.c:1877
__blk_mq_issue_directly block/blk-mq.c:2573 [inline]
blk_mq_request_issue_directly+0x3dc/0x720 block/blk-mq.c:2658
blk_mq_plug_issue_direct+0x22a/0x5c0 block/blk-mq.c:2679
blk_mq_flush_plug_list+0x854/0x1890 block/blk-mq.c:2791
__blk_flush_plug+0x420/0x500 block/blk-core.c:1199
blk_finish_plug block/blk-core.c:1226 [inline]
__submit_bio+0x422/0x560 block/blk-core.c:623
__submit_bio_noacct_mq block/blk-core.c:696 [inline]
submit_bio_noacct_nocheck+0x4d3/0xe30 block/blk-core.c:725
submit_bh fs/buffer.c:2824 [inline]
block_read_full_folio+0x93b/0xcd0 fs/buffer.c:2451
filemap_read_folio+0x14d/0x630 mm/filemap.c:2367
do_read_cache_folio+0x3f5/0x850 mm/filemap.c:3825
read_mapping_folio include/linux/pagemap.h:1011 [inline]
erofs_bread+0x499/0xd40 fs/erofs/data.c:41
erofs_read_superblock fs/erofs/super.c:281 [inline]
erofs_fc_fill_super+0x345/0x1770 fs/erofs/super.c:625
get_tree_bdev_flags+0x48e/0x5c0 fs/super.c:1636
erofs_fc_get_tree+0x55/0x230 fs/erofs/super.c:712
vfs_get_tree+0x92/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3507
do_mount fs/namespace.c:3847 [inline]
__do_sys_mount fs/namespace.c:4057 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3c5b17feba
RSP: 002b:00007f3c5bee4e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3c5bee4ef0 RCX: 00007f3c5b17feba
RDX: 0000000020000000 RSI: 0000000020000400 RDI: 00007f3c5bee4eb0
RBP: 0000000020000000 R08: 00007f3c5bee4ef0 R09: 0000000001008801
R10: 0000000001008801 R11: 0000000000000246 R12: 0000000020000400
R13: 00007f3c5bee4eb0 R14: 00000000000001e5 R15: 0000000020005ac0
task:syz-executor state:R running task stack:20992 pid:8692 tgid:8692 ppid:8686 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6690
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6869
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6893
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
copy_pte_range mm/memory.c:1194 [inline]
copy_pmd_range+0x7b90/0x85f0 mm/memory.c:1255
copy_pud_range mm/memory.c:1292 [inline]
copy_p4d_range mm/memory.c:1316 [inline]
copy_page_range+0x99f/0xe90 mm/memory.c:1414
dup_mmap kernel/fork.c:746 [inline]
dup_mm kernel/fork.c:1675 [inline]
copy_mm+0x1117/0x1e80 kernel/fork.c:1724
copy_process+0x1845/0x3d50 kernel/fork.c:2374
kernel_clone+0x226/0x8f0 kernel/fork.c:2786
__do_sys_clone kernel/fork.c:2929 [inline]
__se_sys_clone kernel/fork.c:2913 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2913
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0de0d74f93
RSP: 002b:00007fffcea99078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0de0d74f93
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055555e8037d0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000006ec6d R14: 000000000006dc54 R15: 00007fffcea99200
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g40421 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=34873
rcu: rcu_preempt kthread starved for 10502 jiffies! g40421 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:I stack:25104 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6782
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 11426 Comm: syz.8.1129 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:32 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:123 [inline]
RIP: 0010:lock_is_held_type+0x6a/0x190 kernel/locking/lockdep.c:5893
Code: 00 65 4c 8b 2c 25 c0 d7 03 00 41 83 bd dc 0a 00 00 00 0f 85 da 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f 04 24 <4c> 8b 24 24 fa 48 c7 c7 a0 d7 0a 8c e8 65 1b 00 00 65 ff 05 5e 4f
RSP: 0018:ffffc90000007c48 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffff8880253c3c00
RDX: ffff8880253c3c00 RSI: 00000000ffffffff RDI: ffff88801238c300
RBP: dffffc0000000000 R08: ffffffff89cca121 R09: fffff52000000f80
R10: dffffc0000000000 R11: fffff52000000f80 R12: 0000000000000002
R13: ffff8880253c3c00 R14: 00000000ffffffff R15: ffff88801238c300
FS: 00007f7c283226c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000755be000 CR4: 0000000000350ef0
Call Trace:
lock_is_held include/linux/lockdep.h:249 [inline]
advance_sched+0x148/0xca0 net/sched/sch_taprio.c:927
__run_hrtimer kernel/time/hrtimer.c:1691 [inline]
__hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1755
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x112/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x996/0xeb0
Code: 48 21 c3 0f 85 16 02 00 00 e8 26 7d 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 17 7d 20 00 eb 06 e8 10 7d 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 f6 42 8a 00 4c 8b
RSP: 0018:ffffc900033be7e0 EFLAGS: 00000283
RAX: ffffffff81745d50 RBX: ffffffff8f182458 RCX: 0000000000040000
RDX: ffffc90010b80000 RSI: 0000000000004244 RDI: 0000000000004245
RBP: ffffc900033be990 R08: ffffffff81745d27 R09: 1ffffffff2859b00
R10: dffffc0000000000 R11: fffffbfff2859b01 R12: ffffffff8f182400
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc900033be9e0
__console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3279
vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2407
_printk+0xd5/0x120 kernel/printk/printk.c:2432
__nla_validate_parse+0x282e/0x3090 lib/nlattr.c:647
__nla_parse+0x40/0x60 lib/nlattr.c:732
nla_parse_deprecated include/net/netlink.h:708 [inline]
nfnetlink_rcv_msg+0x7f2/0x1180 net/netfilter/nfnetlink.c:275
netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2551
nfnetlink_rcv+0x297/0x2ab0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x7f8/0x990 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:729 [inline]
__sock_sendmsg+0x223/0x270 net/socket.c:744
____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
___sys_sendmsg net/socket.c:2661 [inline]
__sys_sendmsg+0x292/0x380 net/socket.c:2690
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7c2757e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7c28322038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7c27736130 RCX: 00007f7c2757e719
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 000000000000000a
RBP: 00007f7c275f139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7c27736130 R15: 00007ffc40858d98
watchdog: BUG: soft lockup - CPU#1 stuck for 222s! [kworker/u8:6:3040]
Modules linked in:
irq event stamp: 8064614
hardirqs last enabled at (8064613): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357
hardirqs last disabled at (8064614): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049
softirqs last enabled at (8064584): [] __do_softirq kernel/softirq.c:588 [inline]
softirqs last enabled at (8064584): [] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last enabled at (8064584): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
softirqs last disabled at (8064533): [] __do_softirq kernel/softirq.c:588 [inline]
softirqs last disabled at (8064533): [] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (8064533): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
CPU: 1 UID: 0 PID: 3040 Comm: kworker/u8:6 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-8:0)
RIP: 0010:rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x19f1/0x2ca0 kernel/smp.c:884
Code: 00 00 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 86 f3 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 31 ef 0b 00 eb 38 90 42 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8
RSP: 0018:ffffc9000b76dfa0 EFLAGS: 00000293
RAX: ffffffff8188eb4b RBX: 1ffff110170c8ca1 RCX: ffff88802fcb0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000b76e1a0 R08: ffffffff8188eb1a R09: 1ffff920016edbe4
R10: dffffc0000000000 R11: ffffffff81431160 R12: dffffc0000000000
R13: ffff8880b8646508 R14: ffff8880b873fc80 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c35da51 CR3: 00000000649b0000 CR4: 0000000000350ef0
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
__flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
flush_tlb_multi arch/x86/mm/tlb.c:938 [inline]
flush_tlb_mm_range+0x329/0x5c0 arch/x86/mm/tlb.c:1024
flush_tlb_page arch/x86/include/asm/tlbflush.h:254 [inline]
ptep_clear_flush+0x11a/0x170 mm/pgtable-generic.c:101
page_vma_mkclean_one+0x58a/0x9a0 mm/rmap.c:1041
page_mkclean_one+0x280/0x420 mm/rmap.c:1082
rmap_walk_file+0x531/0x9f0 mm/rmap.c:2697
rmap_walk mm/rmap.c:2715 [inline]
folio_mkclean+0x262/0x440 mm/rmap.c:1114
folio_clear_dirty_for_io+0x22b/0xd00 mm/page-writeback.c:3024
mpage_submit_folio+0x88/0x230 fs/ext4/inode.c:1902
mpage_process_page_bufs+0x6c9/0x8d0 fs/ext4/inode.c:2034
mpage_prepare_extent_to_map+0xec7/0x1c80 fs/ext4/inode.c:2535
ext4_do_writepages+0xc55/0x3d20 fs/ext4/inode.c:2677
ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2813
do_writepages+0x35f/0x870 mm/page-writeback.c:2683
__writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1658
writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1954
__writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2025
wb_writeback+0x42f/0xbd0 fs/fs-writeback.c:2136
wb_check_old_data_flush fs/fs-writeback.c:2240 [inline]
wb_do_writeback fs/fs-writeback.c:2293 [inline]
wb_workfn+0xba1/0x1090 fs/fs-writeback.c:2321
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 11426 Comm: syz.8.1129 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__lock_acquire+0x13a2/0x2050 kernel/locking/lockdep.c:5206
Code: 40 44 89 e2 48 89 e9 e8 cc 9d 00 00 45 31 f6 85 c0 0f 84 81 00 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b 44 24 20 0f b6 04 10 <84> c0 0f 85 0a 08 00 00 48 8b 44 24 10 f6 40 02 10 75 55 48 8b 44
RSP: 0018:ffffc90000007910 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffffffff93c457c8 RCX: e1babb376e202d00
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff942cd800
RBP: 8f1279fecd576743 R08: ffffffff942cd807 R09: 1ffffffff2859b00
R10: dffffc0000000000 R11: fffffbfff2859b01 R12: 0000000000000000
R13: ffff8880253c46d8 R14: 0000000000000000 R15: ffff8880253c47a0
FS: 00007f7c283226c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000755be000 CR4: 0000000000350ef0
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
debug_object_activate+0x16d/0x510 lib/debugobjects.c:708
debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
debug_activate kernel/time/hrtimer.c:478 [inline]
enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1085
__run_hrtimer kernel/time/hrtimer.c:1708 [inline]
__hrtimer_run_queues+0x6cb/0xd50 kernel/time/hrtimer.c:1755
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x112/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x996/0xeb0
Code: 48 21 c3 0f 85 16 02 00 00 e8 26 7d 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 17 7d 20 00 eb 06 e8 10 7d 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 f6 42 8a 00 4c 8b
RSP: 0018:ffffc900033be7e0 EFLAGS: 00000283
RAX: ffffffff81745d50 RBX: ffffffff8f182458 RCX: 0000000000040000
RDX: ffffc90010b80000 RSI: 0000000000004244 RDI: 0000000000004245
RBP: ffffc900033be990 R08: ffffffff81745d27 R09: 1ffffffff2859b00
R10: dffffc0000000000 R11: fffffbfff2859b01 R12: ffffffff8f182400
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc900033be9e0
__console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3279
vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2407
_printk+0xd5/0x120 kernel/printk/printk.c:2432
__nla_validate_parse+0x282e/0x3090 lib/nlattr.c:647
__nla_parse+0x40/0x60 lib/nlattr.c:732
nla_parse_deprecated include/net/netlink.h:708 [inline]
nfnetlink_rcv_msg+0x7f2/0x1180 net/netfilter/nfnetlink.c:275
netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2551
nfnetlink_rcv+0x297/0x2ab0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x7f8/0x990 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:729 [inline]
__sock_sendmsg+0x223/0x270 net/socket.c:744
____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
___sys_sendmsg net/socket.c:2661 [inline]
__sys_sendmsg+0x292/0x380 net/socket.c:2690
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7c2757e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7c28322038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7c27736130 RCX: 00007f7c2757e719
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 000000000000000a
RBP: 00007f7c275f139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7c27736130 R15: 00007ffc40858d98